latest silly question - groaning noise...

i know how you all love vague "eh... why does my landy make this funny noise" type questions, so here is another one. i get a weird groaning noise once my engine is warm - it sounds like a hippo in mild discomfort. not especially loud, not rhythmic, just a "arooo oo ooowoo... aroooo ooo... ooooowoooOOOO... aroooooo" not a rub or a squeal, as such, so i don't think it's a bearing or a slipping belt, but it certainly sounds like something might be slipping. i thought it might be the water pump, as it doesn't start right away, i have to run the engine for four or five miles before it starts, and then it continues when the vehicle is stationary, stops when the engine is stopped. what do you think? (apart from "bugger off")

I reckon it could be the water pump on it's way out (tightening up) when warm.

Regards WP.

ishmael said:

thought it might be the water pump, as it doesn't start right away, i have to run the engine for four or five miles before it starts, and then it continues when the vehicle is stationary, stops when the engine is stopped. what do you think? (apart from "bugger off")

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eh! what? how? are you sure you don't mean the fan don't start for 4 or 5 miles?

slob said:

eh! what? how? are you sure you don't mean the fan don't start for 4 or 5 miles?

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its a mechanical fan - it goes from the off... when i am a rich man, i'll put a kenlowe on it. what i thought was, once the thermo opens, then the pump actually starts pumping stuff, and is making a nasty noise while doing so. i've had a few probs with the water, i had a split heater hose which meant that i was losing water at a rate, so maybe running dry has fecked it.

Wesley Pegden said:

I reckon it could be the water pump on it's way out (tightening up) when warm.

Regards WP.

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thanks

LOL, your 'groaning' noise has brought some funny memories flooding back! I had a LTWT that did the same thing, only I described it as a pregnant whale!

The answer is the oil cooler, what part of the oil cooler I can't remember, but the only way I got my answer was to right to LRO back in the very early 90's!

Damian.t said:

LOL, your 'groaning' noise has brought some funny memories flooding back! I had a LTWT that did the same thing, only I described it as a pregnant whale!

The answer is the oil cooler, what part of the oil cooler I can't remember, but the only way I got my answer was to right to LRO back in the very early 90's!

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wow. i actually *have* an oil cooler. sounds like this would be worth investigating. was it a major problem, or the sort of thing that can be ignored?

It's slowly coming back to me now, a 'something' valve they said.....

I was told that I could ignore it, but sitting at a set of traffic lights in the middle of the town centre with your Landy doing whale impressions ain't something you can ignore!

If you have the old LRO book called 'Know your Land Rover', then the full answer is in there somewhere!

Good luck!

Damian.t said:

It's slowly coming back to me now, a 'something' valve they said.....

I was told that I could ignore it, but sitting at a set of traffic lights in the middle of the town centre with your Landy doing whale impressions ain't something you can ignore!

If you have the old LRO book called 'Know your Land Rover', then the full answer is in there somewhere!

Good luck!

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cheers for that. i'll see if i can hunt down a copy - i have the opman, and the parts list, but neither of those cover the oil cooler.